How to use earlycon and earlyprintk on Samsung S3C24xx

Hi, It seems, at least in 4.4.2 kernel, earlyprintk parameter supports something like 's3c24xx,<addr>'. But I dont know where to find out the addr value of the first uart port on my *s3c2416* based board. Can someone please tell me? Also, I desire to know if the earlycon parameter supports the Samsung S3C24xx uarts, if so, what should the value of the parameter look like? Thank in advance, -woody -- Life is the only flaw in an otherwise perfect nonexistence -- Schopenhauer woody public key at http://subkeys.pgp.net:11371 (narkewoody@gmail.com)